mitt romney kept his focus on ohio for the entire day. >> and america wants to see big changes and we're going to bring big changes to get america stronger again. >> we've got to go forward with the policies that are getting us out of this mess and that's why i'm running for a second term. >> in fact, president obama will finish his day in ohio before heading back to washington. mr. obama picked up a big endorsement today from colin powell, but powell insists he's still a republican. >>> arlington county opened a criminal investigation into voter fraud after an indent involving congressman jim moran's son. >> 23-year-old patrick moran resigned as a campaign field director after he was seen on an undercover video discussing illegal voting. peggy fox joins us live with the latest. >> that's right. in that video posted by a conservative activist patrick moran tried several times to discourage the undercover activist from following through with his so-called voter fraud plan, but then moran offers the man specific ways to skirt virginia's new voter identification law. patrick moran is seen i